This is a comparison of the 4th Doctor's regeneration in Logopolis and in the beginning of Castrovalva.

You can choose the episode you want to listen to with headphones. Logopolis = Left ear | Castrovalva = Right ear.

Sorry for the delay, I put this together in a hurry so it's not of the best quality.

Thanks to the Youtuber ‪@CultOfThirteen‬ for the extracts.

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